Capfull of Wind

Olaus Magnus tells us that Eric, King of Sweden, was so familiar
with evil spirits that what way soever he turned his cap the wind would
blow, and for this he was called Windy Cap. The Laplanders drove
a profitable trade in selling winds; but, even so late as 1814, Bessie
Millie, of Pomona (Orkney Islands), helped out her living by selling
favourable winds to mariners for the small sum of sixpence. (See
Mont St. Michel.)